
Mushrooms are a versatile ingredient used in cooking, especially in Asian and European cuisines. They are made of 80 to 90 percent water, which means that they can easily become slimy and develop dark spots and mould if not stored properly. So, do mushrooms require refrigeration? The answer is yes, but with some caveats.
| Characteristics | Values |
|---|---|
| Refrigeration | Yes, refrigeration is recommended for mushrooms to prevent them from becoming slimy or developing dark spots and mold. |
| Storage Container | Mushrooms should be stored in a porous container or paper bag to promote air circulation and absorb excess moisture. Plastic bags are not recommended as they can trap moisture and cause slime formation. |
| Storage Duration | Whole mushrooms can be stored in the refrigerator for up to two weeks, but it is advisable to consume them within seven to ten days. Sliced mushrooms have a shorter shelf life of around five to seven days. |
| Washing | Mushrooms should be stored unwashed as washing or soaking can cause them to absorb too much water, leading to faster spoilage. |
| Freezing | Mushrooms can be frozen for long-term storage. Lightly cooking them before freezing helps preserve their quality and flavor. |
| Drying | Drying mushrooms, either through air-drying or using a dehydrator, is another long-term storage option that can preserve their flavor and texture. |
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What You'll Learn
- Whole mushrooms can be stored in the refrigerator for up to two weeks
- Sliced mushrooms will last for about a week in the fridge
- Cooked mushrooms can be refrigerated for seven to ten days
- Marinated mushrooms can be stored in the fridge for ten to fourteen days
- Frozen mushrooms can be stored for up to a year

Whole mushrooms can be stored in the refrigerator for up to two weeks
To ensure that whole mushrooms remain fresh for up to two weeks, it is important to store them unwashed. Washing or soaking mushrooms before storing them can cause them to absorb too much water, leading to faster spoilage. Instead, wipe down the mushrooms with a damp paper towel to remove any dirt or grime.
When storing whole mushrooms, it is also important to choose the right container. Fresh mushrooms should be stored in a porous container to promote air circulation, with paper towels to absorb excess moisture. Fungi thrive in damp, sealed environments, so it is important to avoid plastic bags or containers without holes. Instead, store mushrooms in an open plastic container or a brown paper bag.
Additionally, it is important to check the humidity level in the refrigerator. Mushrooms should not be stored in the crisper, as this area typically has a high humidity setting, which is not ideal for mushrooms. Adjust the humidity level if possible, or store the mushrooms in a part of the refrigerator with low humidity, such as the middle shelf.
By following these storage tips, whole mushrooms can be kept fresh and tasty in the refrigerator for up to two weeks.
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Sliced mushrooms will last for about a week in the fridge
To maximise the lifespan of sliced mushrooms, it is important to store them correctly. They should be kept in a porous container that promotes air circulation and prevents the growth of bacteria. Paper bags are a good option, as they allow the mushrooms to breathe and prevent moisture buildup. Another option is to wrap the mushrooms in paper towels and store them in an open plastic bag. The paper towels will absorb any excess moisture, while the open bag allows for ventilation.
It is also important to note that the type of mushroom will affect its lifespan. Bigger mushrooms, such as Portobello and cremini, tend to last longer than smaller varieties like white button mushrooms. Additionally, cooked mushrooms will last longer than raw ones. If you're looking to keep your mushrooms for longer than a week, freezing them is an option. They will last for up to a year in the freezer, but may lose some of their nutritional value and won't look as appealing when thawed.
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Cooked mushrooms can be refrigerated for seven to ten days
Mushrooms are a versatile ingredient used in cooking, especially in Asian and European cuisines. They are made up of 80 to 90 percent water, which means that they can easily become slimy and develop dark spots and mould if not stored properly.
When storing mushrooms, it is important to keep them unwashed and dry. This is because washing or soaking mushrooms before storing them can cause them to absorb too much water, leading to faster spoilage. Instead, wipe down the mushrooms with a damp paper towel to remove any dirt or grime.
If you are storing cooked mushrooms, they can be refrigerated for seven to ten days. It is important to store them in an airtight container, just like any other cooked food. However, if the mushrooms are included in a dish with ingredients that spoil quickly, they may expire sooner.
To further extend the shelf life of mushrooms, you can choose to blanch or sauté them before freezing. Frozen mushrooms can be stored for up to 12 months. Another option is to dry your mushrooms, which can be done using a dehydrator or air-drying. Dried mushrooms have an intense umami flavour and can be reconstituted in soups, stews, sauces, or stir-fries.
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Marinated mushrooms can be stored in the fridge for ten to fourteen days
Mushrooms are extremely versatile in the kitchen, thanks to their high water content, spongy texture, and mild flavor. However, their high water content means they can spoil quickly and develop a slimy texture. To prevent this, it is important to store mushrooms properly.
When storing mushrooms, it is best to keep them unwashed. Washing or soaking mushrooms before storage can cause them to absorb too much water, leading to faster spoilage. Instead, wipe down the mushrooms with a damp paper towel to remove any dirt or grime.
The shelf life of mushrooms depends on how they are prepared and stored. Whole mushrooms can last in the refrigerator for up to two weeks, while sliced mushrooms should be consumed within a week. Sautéed mushrooms have a longer shelf life than sliced raw mushrooms, lasting in the fridge for about seven to ten days. Marinated mushrooms, which are typically submerged in olive oil, lemon juice, and spices, and then sealed in a glass jar, can be stored in the fridge for ten to fourteen days.
To maximize the shelf life of marinated mushrooms, ensure that the jar is properly sealed and that the mushrooms are fully submerged in the brine. This will prevent spoilage and maintain the quality of the product.
It is important to note that mushrooms can spoil sooner if they are included in a dish with ingredients that spoil quickly. Additionally, mushrooms should be regularly monitored for signs of spoilage, such as dark spots, slime, odor, or wrinkles, and any mushrooms showing these signs should be discarded.
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Frozen mushrooms can be stored for up to a year
Mushrooms are a versatile ingredient used in cooking, especially in Asian and European cuisines. They are made of 80 to 90 percent water, giving them a porous and spongy texture. This means that mushrooms are delicate and perishable, and their shelf life is short.
To prevent mushrooms from spoiling, the goal is to prevent them from releasing water and pulling moisture from the air. They should be stored unwashed in a porous container to promote air circulation, with paper towels to absorb excess moisture. They can be wrapped in a paper towel and stored in a paper bag in the refrigerator. This will keep whole mushrooms fresh for up to two weeks, but they are best consumed within seven to ten days of purchase.
However, freezing is a great option for long-term storage. Frozen mushrooms can be stored for up to a year. To prepare mushrooms for freezing, they can be blanched or sauteed first. They can then be placed in a freezer-safe bag and stored in the freezer. Frozen mushrooms are easy to thaw and can be tossed directly into a dish, or soaked and cleaned before use.
Another long-term storage option is to dry mushrooms, which can be done using a dehydrator or by air-drying. Dried mushrooms have an intense umami flavor and can be reconstituted in water before use.
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Frequently asked questions
Mushrooms are best stored in the refrigerator, but they can be left out for a few hours. The fridge is the best place to keep them, but which spot you choose impacts preservation.
Whole mushrooms bought from the grocery store can last in the refrigerator for up to two weeks. It is advisable to consume them within seven to ten days of purchase. Pre-sliced mushrooms should be consumed within a week.
Mushrooms should be stored unwashed in a porous container to promote air circulation. Paper bags are a good option, as they allow the mushrooms to breathe and prevent moisture buildup. If storing in a plastic bag, punch a few holes in the bag to allow for air circulation.

























